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BUYING GUIDE · MAKE AN INFORMED CHOICE
A better solar PV decision
starts with better questions.
Understand the options, compare like-for-like quotes and see what happens between the first enquiry and handover.
Choose the route before the equipment.
| Option | Best question to ask | What needs checking |
|---|---|---|
| Solar panels | How much generated electricity can I use during the day? | Roof space, shading, electricity use and export arrangements |
| Solar PV + battery | Is there enough surplus generation or tariff opportunity to justify storage? | Usable capacity, charging power, tariffs and installation location |
| Battery addition | What works with my existing solar PV equipment? | Inverter compatibility, metering and the electrical installation |
| Backup-capable system | Which circuits do I need during a power cut? | Compatible equipment, backup demand and a specific installation design |
What affects your quote?
Panel quantity, roof construction, scaffolding, inverter choice, battery capacity, cable routes, existing electrical equipment and access all affect the work. Backup power and specialist structural assessments need their own scope.
We provide a property-specific proposal. An advertised package price is only useful when its installation assumptions match your property.
Compare quotations on the same basis.
- Panel and inverter models, array capacity and battery usable capacity
- Estimated annual generation and the assumptions behind savings
- Scaffolding, access, cable routes and electrical upgrades
- Grid-connection work and any additional assessments
- Monitoring, testing, commissioning and handover documents
- Workmanship and manufacturer warranty terms
- Payment stages, exclusions and any provisional allowances
From enquiry to installation
Understand estimates.
Expected savings depend on generation, self-use, tariffs, export payments and equipment performance. Ask what assumptions have been used and how the figures change if your usage or tariff changes.
Official information
Check Ofgem’s Smart Export Guarantee guidance for eligibility and export arrangements, and Planning Portal’s solar PV guidance for planning information. Requirements need checking for the actual property.
A CLEAR NEXT STEP